The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper we present the design, analysis and fabrication of silicon hollow out-of-plane microneedles for transdermal drug delivery (TDD) applications. The fabrication process of silicon microneedles involves combination of isotropic and anisotropic etching process using inductively coupled plasma (ICP) etching technology. Finite Element Analysis (FEA) using ANSYS rather than analytical system...
In this paper, with the ANSYS, stress distribution, safety factor and fatigue life cycle of connecting rod were analyzed by using 3D finite element method. The results show that the exposed destructive position is the transition location of small end and connecting rod shank at maximum compression condition. Maximum stress is 303 MPa. Safety factor is 1.24. At maximum stretch condition, the exposed...
Based on the test about compression-rebound properties of material bed, there are three zones in roller mill. The movement of material bed between two rollers in roller mill has been analysed. The pressure distribution equations in every zone on the roller's surface have been derived. The stress in roller is important for roller's failure analysis and the life estimation. But it depends on load, structure...
As for a new type of joint of steel structures, cast steel joints are used for large and complicated steel structures. Combined with the analysis of Y-type cast steel joints for the New Railway Station of Guangzhou, the performance of this type cast steel is discussed. With the help of ANSYS software, the distribution of the stress, the process of plasticity spreading and the failure mechanism of...
Based on Lagrange formulation, JC material model and criteriain of Cockroft-Latham, FEM model of ultraprecision cutting is presented. In this study, considerations in the tool edge radius, FEM model of cutting is presented to simulate the chip deformation, cutting force and stress-effective distribution in order to consider the interactive influences of tool edge radius, rake angle and clearance angle...
Based on the engagement principle of cycloid ball planetary transmission (CBPT), the load distribution mechanical model of engagement pair is established in condition of multi-teeth engagement, and the coefficient of load distribution of teeth is presented. The finite element model of engagement pair is established in condition of four points contact. The stress distribution of engagement pair in...
A co-simulation method for rigid-flexible coupling system is proposed in this paper, it is simple and easily carried out. In order to solve the dynamics of 3-TPT parallel robot more accurately, its three driven links are regard as flexible bodies and the other parts are rigid bodies to form the rigid-flexible coupling system, and the dynamics equation of the coupling system is educed by Lagrange's...
The pull-in problem of fixed-fixed beam structures cannot be solved analytically due to its nonlinear from the large deflection and the electrostatic driving force. So to understanding the characters of the devices, the designers have to resort to numerical techniques. Lack of an accurate model for predicting pull-in voltage for basic micromachined beam structures necessitates the clear need for a...
In this paper, a redesign of the prestress mechanism of the stack-type piezoelectric ceramic actuator is provided. Belleville (disc) springs which have a specific height-to- thickness ratio are constructed to generate a constant pre-stress force to the PZT and operated in a special condition. The zero- spring-rate preload mechanism is not only used to handle the tensile stress but also used in both...
This paper presents an analysis of the actuation requirements of the flexible spline of a harmonic motor. The analysis accounts for the initial strain distribution required to bring the flexible spline into contact with the rigid spline, and proceeds to the derivation of the additional stress required to produce a given contact force for torque generation. An expression for the two-dimensional stress...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.